For the orthographic projection as a map projection, see Orthographic projection in cartography. For mathematical discussion in terms of linear algebra, see Projection (linear algebra).
Bullfrogs are the largest real frog found in North America, weighing up to 0.5 kg and measuring 460 mm in length. Their average length is 100-175 mm. Their color varies from brownish to shades of green, often with spots or blotches of a darker color around their backs. Their back feet are fully webbed.
The bird-voiced treefrog (Hyla avivoca) is a relatively small, tree-dwelling amphibian which is named for its distinctive, bird-like call. Given by the male, this call consists of a series of high-pitched, whistled â whit, whit, whit â notes, which are repeated several times.he bird-voiced treefrog is an arboreal species that inhabits wooded swamps and forested wetlands, usually near rivers or streams. It is commonly found in habitats containing trees such as cypress, tupelo gum and buttonbush.